Negro \Ne"gro\, n.; pl. Negroes. [Sp. or Pg. negro, fr. negro black, L. niger; perh. akin to E. night.]

A black man; especially, one of a race of black or very dark persons who inhabit the greater part of tropical Africa, and are distinguished by crisped or curly hair, flat noses, and thick protruding lips; also, any black person of unmixed African blood, wherever found.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Negro \Ne"gro\, a. Of or pertaining to negroes; black.

Negro bug (Zo["o]l.), a minute black bug common on the raspberry and blackberry. It produced a very disagreeable flavor.

negro corn, the Indian millet or durra; -- so called in the West Indies. see Durra. --McElrath.

Negro fly (Zo["o]l.), a black dipterous fly (Psila ros[ae]) which, in the larval state, is injurious to carrots; -- called also carrot fly.

Negro head (Com.), Cavendish tobacco. [Cant] --McElrath.

Negro monkey (Zo["o]l.), the moor monkey.

Source: Webster's Revised Unabridged Dictionary (1913)